464542981 has 12 divisors (see below), whose sum is σ = 540743040. Its totient is φ = 397917240.

The previous prime is 464542979. The next prime is 464542987. The reversal of 464542981 is 189245464.

It is not a de Polignac number, because 464542981 - 2¹ = 464542979 is a prime.

It is a super-2 number, since 2×464542981² = 431600362392732722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464542987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125130 + ... + 128788.

It is an arithmetic number, because the mean of its divisors is an integer number (45061920).

Almost surely, 2^464542981 is an apocalyptic number.

It is an amenable number.

464542981 is a deficient number, since it is larger than the sum of its proper divisors (76200059).

464542981 is a wasteful number, since it uses less digits than its factorization.

464542981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264 (or 6257 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 464542981 is about 21553.2591734986. The cubic root of 464542981 is about 774.4771949564.

The spelling of 464542981 in words is "four hundred sixty-four million, five hundred forty-two thousand, nine hundred eighty-one".